Rack



FIG. 1 is a front perspective view of a rack showing my new design;

FIG. 2 is a front elevational view thereof, the rear elevational viewbeing identical to FIG. 2;

FIG. 3 is a right side elevational view thereof, the left sideelevational view being identical to FIG. 3;

FIG. 4 is a top plan view thereof; and,

FIG. 5 is a bottom plan view thereof.

The ornamental design for a rack, as shown and described.